Disinfecting and deodorizing apparatus.



UNITED srarns ra'rnnr amen.

EDWARD ROOCI-I, OF NORWOOD, OHIO, ASSIGNOR TO THE INTERSTATE SANITATION COMPANY, OF CINCINNATI, OHIO, A CORPORATION OF OHIO.

DISINFECTING AND DEODORIZING APPARATUS.

Specification of Letters Patent.

Application filed August 18, 1909.

To all whom it may concern:

Be it known that I, EDWARD RoooH, a citizen of the United States, residing at Norwood, in the county of Hamilton and State of Ohio, have invented certain new and useful Improvements in Disinfecting and Deodorizing Apparatus, of which the following is a specification.

My invention relates to that class of disinfecting and deodorizing devicesin which the disinfecting medium is dispensed by evaporation and which are most frequently used in toilet rooms.

The objects of my invention are to provide a simple and efficient device for vaporizing and disseminating the disinfecting medium; to provide a device which shall vaporize the entire volume of the disinfecting medium, thereby avoiding drip, and requiring no drainage; and to provide a device in which the feed of the liquid is automatically regulated by the vaporization.

My invention consists in the parts and combination and arrangement of parts hereinafter described and claimed.

In the drawings, Figure 1 is a rear elevation of a dispensing can embodying my invention; Fig. 2, a central vertical section of the same; Fig. 3, a top plan view, which may also be regarded as a bottom view, the top and bottom views being identical; Fig. 4, a cross section on the line H of Fig. 2; and Fig. 5, a vertical section of the feed and air tubes.

The reference numeral 1 designates the casing, or shell, of the dispensing can, preferably of sheet metal, 2, 2 wings or strips for securing the can to a wall, 3 a hinged cover provided with a pin 1 adapted to take into a perforation 5 in a spring latch 6, secured to the body of the shell, 7 perforations in the lower part of the body of the shell, 8 perforations in the top. and bottom of the shell, 9 an imperforate tubular wall extending upwardly from the bottom of the shell, forming with the peripheral wall of the shell, an annular fluid cup, 10, and adapted to receive and hold in position a perforated wick tube 11 adapted to carry a wick 12, of felt or other porous material, which should not extend to the top of the tube, 13 an annular flange, preferably fiXed to the body of the shell, and extending inwardly to engage with the wick and cover the fluid cup, 14: an opening in flange 13 adapted to receive the supply tube, 15, 15, guides for convenience in positioning the supply tube, 16 a fluid reservoir adapted to be seated within the shell and resting upon the wick tube, 17 a threaded cap closing a filling hole at the bottom of the reservoir, 18 a feed tube leading from the bottom of the reservoir to a point near the bottom wall of the shell, 19 an air tube, leading from near the top of the supply tube to a predetermined fluid level in the fluid cup, mounted with its upper end within the supply tube but having its lower end outside the supply tube, 20 a conical valve adapted to close the inlet of the supply tube and notched at 21 to allow it to close over the air tube, 22 a valve stem extending downwardly through the supply tube, and adapted to engage with the bottom wall of the shell as the reservoir reaches its position in the shell, thereby opening the valve, 23 a bend or lug on the lower end of the valve stem to prevent its slipping out when the reservoir is reversed for filling, 2 1 a latch opener consisting of a wire rod provided at one end with a hand hold, 25 and having the other end 26 bent to take over the top of the spring latch.

To charge the dispensing can, the latch 6 is released by means of the latch opener 24, the cap 3 opened, the reservoir 16 withdrawn and inverted, the cap 17 unscrewed the reservoir filled with a suitable volatile disinfecting medium, the cap 17 replaced, thereservoir reversed and replaced in the shell, the valve 20 automatically closing the supply tube. As the reservoir reaches its position, the free end of the valve stem engages the bottom of the can and opens the valve thereby permitting fiuid to fiow from the reservoir into the fluid cup 10. The flow of fluid continues until it reaches th-e predetermined level when it reaches and seals the air tube, thereby stopping the supply. Meantime the wick becomes saturated with the disinfecting medium and vaporization proceeds being promoted by the draft through the perforations in the bottom of the shell and the perforations in the wick tube above the wick line.

vaporization gradually exhausts the .volume of fluid in the fluid cup thereby lowering its level, opening the air tube and per- 'mitting further flow of fluid from the reser-.

voir into the fluid cup, the supply-of fluid vaporized.

being automatically regulated by the amount The cover, 13, prevents thefluid in the cup from splashing over when'the device is subjected to motion, as on railway cars.

Attempts have I secure dissemination of the disinfecting fluid by vaporization, and provision has sometimes been made for admitting air to the in .terior vof the wick tube, but, so far as I am aware, the wick has been extended to the closed top of the tube thereby constituting the interior of the tube a mere air pocket. By perforating the shell at bottom and top,

i as well as in its periphery, and extending the I perforated wick tube above the wick, I secure a draft of air through the tube and shell, and thereby obtain a large increase in efliciency.

Inasmuch as the fluid level in the cup can never reach above a certain level, and the fluid can only escape through evaporation from the wick, there is no waste of the disinfectant, and the device may be mount-ed Wherever desired, without regard to drain- I claim as my invention: 1

V '1. A disinfecting apparatus embodying a 'shell perforated to form an evaporating chamber; a fluid reservoir adapted to be positioned in the shell; a fluid cup positioned at the lower extremity of the shell; a fluid passage adapted to permit a flow, of fluid from the reservoir to the cup; a perforated wick-tube mounted in said shell and a wick adapted to take fluid from the cup, the bottom of said shell and the wall of said wicktube, above the top of the wick, being provlded with one or more openings to permit l the passage of air through thewick-tube to the evaporating chamber.

2. A disinfecting apparatus embodying a shell perforated to form an evaporating chamber; a fluid reservoir adapted to be po- 'sitioned in the shell; a-fluid cuppositioned chamber, and having an annular cup posii tioned at its lower extremity, the'shell being providedwith 'onezor more openings'in its wall communlcatingwith the space in'closed heretofore been made to;

by the cup; a fluid reservoir adapted to be positioned in .the shell; 4 a fluid passage adapted to permit flow of fluid from the reservoir to the cup; a perforated wick tube extending above thecup; anda wick carried thereby, the wick tube having one or more openings at its top communicating with the evaporating chamber.

v 4 A disinfecting a paratus embodying a perforated shell; a uid cup positioned at the lower extremity of the shell; a closed fluid reservoir adapted to be positioned in the shell; a supply ;pipe-leading from' the bottom of the reservoir into the fluid cup; an air tube leadin from the bottom of the reservoir into the fluid cup, but terminating above the lower end of the supply pipe; and a valve adapted to close the vupper ends of the supply and ain tubes from communication with the reservoir, and to open when the reservoir is placed in operativeposition.

5. A disinfecting apparatus embodying a perforated shell; a fluid cup positioned at the lower extremity of the shell; a closed fluid reservoirradaptedto be positioned in r the shell; a supply pipe leading from the bottom of the reservoir into the fluid cup;

an air tube leadin from the bottom of the reservoir into the fluid cup, but terminating above the lower end of the supply pipe, the upper end ofthe air tube being within and its lower end being outside the supply tube;

and a valve adapted to close the upper ends of the supply and air tubes from communication with the reservoir, and to open when the reservoir is placed in operative position.

6. A disinfecting apparatus embodying a perforated shell; a fluid cup in its bottom; a closed fluid reservoir adapted to be positioned in the shell; a supply pipe leading from thebottom of the reservoir into the fluid cup; an air tube leading from the botl tom of the reservoir into the fluid cup, having its upper terminal within the supply tube and slightly below its top, and its lower terminal outside the supply tube and above its lower end; anda notched valve adapted 5 7. A disinfecting apparatus embodying a perforated shell; a fluid cup positioned at the lower extremity 'of the shell; a closed fluid reservoir adapted to be positioned in the shell; a supply pipe leading from the bottom of the reservoir into the fluid'cup; 1

an air tube leading from the bottom of the a reservoir into the fluid cup; 'a valve adapted 'to close the upper ends of the supply and air tubes. from communication with the reservoir, and having a stemextending through the supply tube adapted to engage with the shell and open the-valve when'the reservoir is placed in operative-position. 8. A disinfecting apparatusembodying an air tight fluid reservoir; an annular fluid plate mounted above the fluid level in the cup; a fluid passage adapted to permit the cup and adapted to prevent the splashing of flow of fluid from the reservoir to the cup; fluid from the cup.

an evaporating chamber; a Wick tube mount- EDWARD ROOCH. ed therein and seated Within the interior Witnesses: Wall of the annular cup; a Wick adapted to W. W. SYMMES,

take fluid from the cup; and an annular MARY GERHARDSTEIN. 

